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首页> 外文期刊>Science of the total environment >Sedimentary evolution of PAHs,POPs and ECs: Historical sedimentary deposition and evolution of persistent and emerging organic pollutants in sediments in a typical karstic river basin
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Sedimentary evolution of PAHs,POPs and ECs: Historical sedimentary deposition and evolution of persistent and emerging organic pollutants in sediments in a typical karstic river basin

机译：PAHS，POPS和ECS的沉积演变：典型岩溶河流域沉积物沉积物沉积及持续和新出现有机污染物的演变

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摘要

Knowledge on the occurrence and distributions of organic compounds,especially PAHs,POPs and ECs,in karstic river basins is limited.This study aims to determine the depositional history and sources of PAHs,PCBs,OCPs,antibiotics,EDCs and phenolic compounds and the ecological risk they have in the Panyang River Basin,an area with a typical karstic landscape and a high-longevity population.Sediment core analysis was adopted,correlation and principal component analyses were conducted to analyze pollution sources,and lead isotope technology was implemented for dating analysis.The sediment core covered 108 years.PCBs were detected with concentrations ranging from 3.80 to 16.18 μg/kg in the core with two concentration peaks in 1950 and 2005 that were related to anthropogenic effects.Eight of the 20 targeted phenolic compounds were detected,with concentrations ranging from 0.42 to 1.10 mg/kg.All PAHs were detected in the cores,with concentrations from 12.91 to 37.80 μg/kg.They were mainly related to natural diagenetic processes and domestic and agricultural sources.The concentrations of different OCP compounds ranged from undetected to 213.43 μg/kg and were mainly related to agricultural activities and long-range transportation.These key findings can assist environmental planning and management in this river basin.
机译：Karstic River Basins的有机化合物，特别是PAHS，POPS和ECS的发生和分布的知识是有限的。本研究旨在确定PAHS，PCB，OCP，抗生素，EDC和酚类化合物的沉积历史和来源以及生态学他们在番禺河流域的风险，一个典型的岩溶景观和高寿命群体。采用了核心分析，进行了相关和主要成分分析，以分析污染源，并实施了牵头同位素技术进行约会分析。沉积物核心覆盖了108年。通过浓度从3.80至16.18μg/ kg的浓度检测到核心，1950年和2005年的核心，与人为作用有关。检测到20个靶向酚类化合物的态度。在核心中检测到0.42至1.10mg / kg的浓度范围为核心，浓度为12.91至37.80μg/ kg。他们主要是relat对天然成岩工艺和国内和农业来源。不同OCP化合物的浓度范围从未被发现到213.43μg/ kg，主要与农业活动和远程运输有关。这些主要结果可以协助这条河流的环境规划和管理盆地。

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  • 来源
    《Science of the total environment》 |2021年第15期|144765.1-144765.13|共13页
  • 作者

    Qucheng Deng; Yongping Wei; Wenyu Huang; Yonghua Li; Chong Peng; Yinjun Zhao; Jiahuan Yang; Zecheng Xu; Xiaofei Wang; Wei Liang;

  • 作者单位

    Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China School of Earth and Environmental Sciences the University of Queensland Brisbane 4072 Australia;

    School of Earth and Environmental Sciences the University of Queensland Brisbane 4072 Australia;

    Guangxi University Nanning 530004 China;

    Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China;

    Guangxi Zhuang Autonomous Region Radiation Environmental Supervision and Management Station 530028 China;

    Key Laboratory of Environment Change and Resources Use in Beibu Gulf Ministry of Education Nanning Normal University Nanning 530001 China;

    Guangxi Zhuang Autonomous Region Marine Environment Monitoring Center Station 536000 China;

    Guangxi Zhuang Autonomous Region Radiation Environmental Supervision and Management Station 530028 China;

    School of Environmental Science and Engineering Hubei Polytechnic University Huangshi 435003 China;

    Guangxi Environmental Information Center Nanning 536000 China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sediment; Sedimentary evolution; PAHs; POPs; ECs; River basin; Karstic landscape;

    机译：沉淀;沉积演化;PAHS;流行;ECS;流域;凯斯蒂奇景观;

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